Electric fan



FIG. 1 is a perspective view.

FIG. 2 is a front view.

FIG. 3 is a rear view.

FIG. 4 is a left view, which is the mirror image of the right view.

FIG. 5 is a top view; and,

FIG. 6 is a bottom view.

In all figures, the dashed line representations are for the purpose of illustrating portions of the electric fan and are not part of the claimed design. 

CLAIM The ornamental design for an electric fan, as shown and described. 